Assess if Immune Response of GSK Biologicals' Tritanrix™-HepB/Hib-MenAC Given Without or With Hepatitis B Vaccine at Birth is at Least as Good as Tritanrix™-HepB/Hiberix™ Without Hepatitis B Vaccine at Birth, When Given to Healthy Infants

Exclusion Criteria

• •Any confirmed or suspected immunosuppressive or immunodeficient condition, based on medical history and physical examination.
• •A family history of congenital or hereditary immunodeficiency.
• •Major congenital defects or serious chronic illness.
• •History of any neurologic disorders or seizures.
• •Administration of immunoglobulins and/or any blood products since birth or planned administration during the study period (except for immunoglobulins given at birth to infants born to HBsAg seropositive mothers).
• •Acute disease at the time of enrolment.
• •Known exposure to diphtheria, tetanus, pertussis, hepatitis B, Haemophilus influenzae type b and/or meningococcal disease.
• •Hepatitis B vaccine given at birth outside the study.